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Review

Dissolved Radiotracers and Numerical Modeling in North European Continental Shelf Dispersion Studies (1982–2016): Databases, Methods and Applications

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Laboratoire de Radioécologie de Cherbourg, IRSN-LRC, rue Max Pol Fouchet B.P. 10, 50130 Cherbourg en Cotentin, France
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Service Hydrographique et Océanographique de la Marine-SHOM, 29200 Brest, France
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Centre d’Etudes et de Valorisation des Algues CEVA, 83 Presqu’île de Pen Lan, 22610 Pleubian, France
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Author to whom correspondence should be addressed.
Water 2020, 12(6), 1667; https://doi.org/10.3390/w12061667
Received: 2 October 2019 / Revised: 20 March 2020 / Accepted: 5 June 2020 / Published: 10 June 2020
Significant amounts of anthropogenic radionuclides were introduced in ocean waters following nuclear atmospheric tests and development of the nuclear industry. Dispersion of artificial dissolved radionuclides has been extensively measured for decades over the North-European continental shelf. In this area, the radionuclide measurement and release fluxes databases provided here between 1982 and 2016 represent an exceptional opportunity to validate dispersion hydrodynamic models. This work gives accessibility to these data in a comprehensive database. The MARS hydrodynamic model has been applied at different scales to reproduce the measured dispersion in realistic conditions. Specific methods have been developed to obtain qualitative and quantitative results and perform model/measurement comparisons. Model validation concerns short to large scales with dedicated surveys following the dispersion: it was performed within a two- and three-dimensional framework and from minutes and hours following a release up to several years. Results are presented concerning the dispersion of radionuclides in marine systems deduced from standalone measurements, or according to model comparisons. It allows characterizing dispersion over the continental shelf, pathways, transit times, budgets and source terms. This review presents the main approaches developed and types of information derived from studies of artificial radiotracers using observations, hydrodynamic models or a combination of the two, based primarily on the new featured datasets. View Full-Text
Keywords: radionuclide; tracer; data collection; antimony 125 (125Sb); tritium (3H); dispersion; modeling; English Channel; North Sea; Biscay Bay radionuclide; tracer; data collection; antimony 125 (125Sb); tritium (3H); dispersion; modeling; English Channel; North Sea; Biscay Bay
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  • Externally hosted supplementary file 1
    Doi: 10.1594/PANGAEA.906749
    Link: https://doi.pangaea.de/10.1594/PANGAEA.906749
    Description: IRSN measurements of dissolved radioactivity in seawater, 1982-2016, including liquid releases database issued from British and French nuclear plants.
MDPI and ACS Style

Bailly du Bois, P.; Dumas, F.; Voiseux, C.; Morillon, M.; Oms, P.-E.; Solier, L. Dissolved Radiotracers and Numerical Modeling in North European Continental Shelf Dispersion Studies (1982–2016): Databases, Methods and Applications. Water 2020, 12, 1667. https://doi.org/10.3390/w12061667

AMA Style

Bailly du Bois P, Dumas F, Voiseux C, Morillon M, Oms P-E, Solier L. Dissolved Radiotracers and Numerical Modeling in North European Continental Shelf Dispersion Studies (1982–2016): Databases, Methods and Applications. Water. 2020; 12(6):1667. https://doi.org/10.3390/w12061667

Chicago/Turabian Style

Bailly du Bois, Pascal, Franck Dumas, Claire Voiseux, Mehdi Morillon, Pierre-Emmanuel Oms, and Luc Solier. 2020. "Dissolved Radiotracers and Numerical Modeling in North European Continental Shelf Dispersion Studies (1982–2016): Databases, Methods and Applications" Water 12, no. 6: 1667. https://doi.org/10.3390/w12061667

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